2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-chlorophenyl)acetic acid CAS 339208-91-2
| CAS No. | 339208-91-2 |
| Molecular Formula | C23H18ClNO4 |
| Molecular Weight | 407.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-chlorophenyl)acetic acid (CAS 339208-91-2), molecular formula C23H18ClNO4 and molecular weight 407.85 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H18ClNO4, 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-chlorophenyl)acetic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 407.85 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C23H18ClNO4 |
| Molecular Weight | 407.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related H Standards
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(2-chlorophenyl)acetic acid (CAS 1260589-83-0)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid (CAS 339208-90-1)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-chloro-3-methylbenzoic acid (CAS 2243516-16-5)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-chloro-3-methylbenzoic acid (CAS 2243507-71-1)
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-cycloheptylpropanoic acid (CAS 1379887-47-4)
- 8-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-oxaspiro[3.5]nonane-2-carboxylic acid (CAS 2137620-12-1)
- (9H-Fluoren-9-yl)methyl (4-bromo-2-methylphenyl)carbamate (CAS 2164249-64-1)
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-fluoro-5-methoxybenzoic acid (CAS 2243516-10-9)
Recommended Standards
- n-(((9h-Fluoren-9-yl)methoxy)carbonyl)-n-(4-chlorophenyl)glycine (CAS 1343234-66-1)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(2-chlorophenyl)acetic acid (CAS 1260608-83-0)
- 2-(2-Chlorophenyl)-4-(pyren-1-ylmethylene)oxazol-5(4H)-one (CAS 71977-19-0)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid (CAS 1260608-79-4)
- 2-Methoxypyridine-4-acetic Acid (CAS 464152-38-3)
- 2-(5-Amino-3,4-dihydroquinolin-1(2H)-yl)-N-methylacetamide (CAS 1248163-12-3)
- Hydantoin-5-13C,1-15N (CAS 1189697-61-7)
- 1-(2-Methyl-1H-indol-3-yl)-2-morpholinoethane-1,2-dione (CAS 92580-31-9)
- 1-benzyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine (CAS 34752-76-6)
- 3-(5-Chloropyridin-3-yl)-1H-indazol-5-amine (CAS 1356088-15-7)
- 3-(3-Chlorophenyl)-1,2,4-oxadiazole-5-carboxylic acid (CAS 944896-63-3)
- CIS-BENZYL ((4-HYDROXYPYRROLIDIN-3-YL)METHYL)CARBAMATE HCL (CAS 1951439-02-3)
- tert-Butyl 2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-4H,6H,7H-thieno[3,2-c]pyridine-5-carboxylate (CAS 2246556-84-1)
- Pheromone Biosynthesis Activating Neuropeptide (Helicoverpa assulta, Heliothis zea) (CAS 122071-54-9)
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